__will I give up. I believe I can manage it.
| A．At once | B． At no time | C．Right now | D．The instant |
--- Have you heard that Jones, along with her parents, to Hainan for the winter vacation?
--- Really? No wonder I haven’t seen her these days.
| A．had been | B．have been | C．has gone | D．have gone |
Not until they left school how much their teachers loved them and helped them.
| A．they realized | B．did they realized |
| C．they would realized | D．had they realized |
It’s nice to see you again. What since we last met?
| A．have you done | B．had you done |
| C．have you been doing | D．did you do |
--- Shall we take the 10:20 train?
--- No. If we took that train, we too late.
| A．arrive | B．arrived |
| C．will arrive | D．would arrive |
--- I had thought he would be nervous in this speech competition, but he turned out to be calm.
--- He quite enough preparation for it.
| A．should do | B．must do |
| C．should have done | D．must have done |